From f721e3ac031f892af46f255a47d7f54a91317b30 Mon Sep 17 00:00:00 2001 From: The Android Open Source Project Date: Tue, 3 Mar 2009 18:28:35 -0800 Subject: auto import from //depot/cupcake/@135843 --- osdep.c | 288 ---------------------------------------------------------------- 1 file changed, 288 deletions(-) delete mode 100644 osdep.c (limited to 'osdep.c') diff --git a/osdep.c b/osdep.c deleted file mode 100644 index 49193e9..0000000 --- a/osdep.c +++ /dev/null @@ -1,288 +0,0 @@ -/* - * QEMU low level functions - * - * Copyright (c) 2003 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#include -#include -#include -#include -#include -#include -#include -#ifdef HOST_SOLARIS -#include -#include -#endif - -#include "qemu-common.h" -#include "sysemu.h" - -#ifdef _WIN32 -#define WIN32_LEAN_AND_MEAN -#include -#elif defined(_BSD) -#include -#else -#include -#endif - - -#if defined(_WIN32) -void *qemu_memalign(size_t alignment, size_t size) -{ - return VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE); -} - -void *qemu_vmalloc(size_t size) -{ - /* FIXME: this is not exactly optimal solution since VirtualAlloc - has 64Kb granularity, but at least it guarantees us that the - memory is page aligned. */ - return VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE); -} - -void qemu_vfree(void *ptr) -{ - VirtualFree(ptr, 0, MEM_RELEASE); -} - -#else - -#if defined(USE_KQEMU) - -#ifdef __OpenBSD__ -#include -#include -#include -#else -#include -#endif - -#include -#include - -static void *kqemu_vmalloc(size_t size) -{ - static int phys_ram_fd = -1; - static int phys_ram_size = 0; - void *ptr; - -#ifdef __OpenBSD__ /* no need (?) for a dummy file on OpenBSD */ - int map_anon = MAP_ANON; -#else - int map_anon = 0; - const char *tmpdir; - char phys_ram_file[1024]; -#ifdef HOST_SOLARIS - struct statvfs stfs; -#else - struct statfs stfs; -#endif - - if (phys_ram_fd < 0) { - tmpdir = getenv("QEMU_TMPDIR"); - if (!tmpdir) -#ifdef HOST_SOLARIS - tmpdir = "/tmp"; - if (statvfs(tmpdir, &stfs) == 0) { -#else - tmpdir = "/dev/shm"; - if (statfs(tmpdir, &stfs) == 0) { -#endif - int64_t free_space; - int ram_mb; - - free_space = (int64_t)stfs.f_bavail * stfs.f_bsize; - if ((ram_size + 8192 * 1024) >= free_space) { - ram_mb = (ram_size / (1024 * 1024)); - fprintf(stderr, - "You do not have enough space in '%s' for the %d MB of QEMU virtual RAM.\n", - tmpdir, ram_mb); - if (strcmp(tmpdir, "/dev/shm") == 0) { - fprintf(stderr, "To have more space available provided you have enough RAM and swap, do as root:\n" - "mount -o remount,size=%dm /dev/shm\n", - ram_mb + 16); - } else { - fprintf(stderr, - "Use the '-m' option of QEMU to diminish the amount of virtual RAM or use the\n" - "QEMU_TMPDIR environment variable to set another directory where the QEMU\n" - "temporary RAM file will be opened.\n"); - } - fprintf(stderr, "Or disable the accelerator module with -no-kqemu\n"); - exit(1); - } - } - snprintf(phys_ram_file, sizeof(phys_ram_file), "%s/qemuXXXXXX", - tmpdir); - phys_ram_fd = mkstemp(phys_ram_file); - if (phys_ram_fd < 0) { - fprintf(stderr, - "warning: could not create temporary file in '%s'.\n" - "Use QEMU_TMPDIR to select a directory in a tmpfs filesystem.\n" - "Using '/tmp' as fallback.\n", - tmpdir); - snprintf(phys_ram_file, sizeof(phys_ram_file), "%s/qemuXXXXXX", - "/tmp"); - phys_ram_fd = mkstemp(phys_ram_file); - if (phys_ram_fd < 0) { - fprintf(stderr, "Could not create temporary memory file '%s'\n", - phys_ram_file); - exit(1); - } - } - unlink(phys_ram_file); - } - size = (size + 4095) & ~4095; - ftruncate(phys_ram_fd, phys_ram_size + size); -#endif /* !__OpenBSD__ */ - ptr = mmap(NULL, - size, - PROT_WRITE | PROT_READ, map_anon | MAP_SHARED, - phys_ram_fd, phys_ram_size); - if (ptr == MAP_FAILED) { - fprintf(stderr, "Could not map physical memory\n"); - exit(1); - } - phys_ram_size += size; - return ptr; -} - -static void kqemu_vfree(void *ptr) -{ - /* may be useful some day, but currently we do not need to free */ -} - -#endif - -void *qemu_memalign(size_t alignment, size_t size) -{ -#if defined(_POSIX_C_SOURCE) - int ret; - void *ptr; - ret = posix_memalign(&ptr, alignment, size); - if (ret != 0) - return NULL; - return ptr; -#elif defined(_BSD) - return valloc(size); -#else - return memalign(alignment, size); -#endif -} - -/* alloc shared memory pages */ -void *qemu_vmalloc(size_t size) -{ -#if defined(USE_KQEMU) - if (kqemu_allowed) - return kqemu_vmalloc(size); -#endif -#ifdef _BSD - return valloc(size); -#else - return memalign(4096, size); -#endif -} - -void qemu_vfree(void *ptr) -{ -#if defined(USE_KQEMU) - if (kqemu_allowed) - kqemu_vfree(ptr); -#endif - free(ptr); -} - -#endif - -int qemu_create_pidfile(const char *filename) -{ - char buffer[128]; - int len; -#ifndef _WIN32 - int fd; - - fd = open(filename, O_RDWR | O_CREAT, 0600); - if (fd == -1) - return -1; - - if (lockf(fd, F_TLOCK, 0) == -1) - return -1; - - len = snprintf(buffer, sizeof(buffer), "%ld\n", (long)getpid()); - if (write(fd, buffer, len) != len) - return -1; -#else - HANDLE file; - DWORD flags; - OVERLAPPED overlap; - BOOL ret; - - /* Open for writing with no sharing. */ - file = CreateFile(filename, GENERIC_WRITE, 0, NULL, - OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); - - if (file == INVALID_HANDLE_VALUE) - return -1; - - flags = LOCKFILE_EXCLUSIVE_LOCK | LOCKFILE_FAIL_IMMEDIATELY; - overlap.hEvent = 0; - /* Lock 1 byte. */ - ret = LockFileEx(file, flags, 0, 0, 1, &overlap); - if (ret == 0) - return -1; - - /* Write PID to file. */ - len = snprintf(buffer, sizeof(buffer), "%ld\n", (long)getpid()); - ret = WriteFileEx(file, (LPCVOID)buffer, (DWORD)len, - &overlap, NULL); - if (ret == 0) - return -1; -#endif - return 0; -} - -#ifdef _WIN32 - -/* Offset between 1/1/1601 and 1/1/1970 in 100 nanosec units */ -#define _W32_FT_OFFSET (116444736000000000ULL) - -int qemu_gettimeofday(qemu_timeval *tp) -{ - union { - unsigned long long ns100; /*time since 1 Jan 1601 in 100ns units */ - FILETIME ft; - } _now; - - if(tp) - { - GetSystemTimeAsFileTime (&_now.ft); - tp->tv_usec=(long)((_now.ns100 / 10ULL) % 1000000ULL ); - tp->tv_sec= (long)((_now.ns100 - _W32_FT_OFFSET) / 10000000ULL); - } - /* Always return 0 as per Open Group Base Specifications Issue 6. - Do not set errno on error. */ - return 0; -} -#endif /* _WIN32 */ - - -- cgit v1.1